Finding Q
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Finding Q
When we are given a Cell Diagram and concentrations and asked to find the Q what do we use as the Products and Reactants. Would we not use the right side (cathode, reduced) side as the Product and the (anode,oxidized) side as the Reactant?
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Re: Finding Q
You can write the total reaction to see what the products and reactions are. But, I believe the anode is usually the product and the cathode usually the reactant.
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Re: Finding Q
Yes, the anode is the product and the cathode is the reactant. This makes sense because in the anode the concentrations of reactant are decreasing as it forms product in the cathode.
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Re: Finding Q
Q=anode/cathode. So you can plug in all the values you know for the equation and solve for the unknown.
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Re: Finding Q
Q is anode/cathode usually. You can write out the full reaction equation to verify on a case to case basis.
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Re: Finding Q
Since you flip the equation for the anode when writing out the total equation for a cell, it makes sense that Q would be anode/cathode because this way the anode becomes the product.
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Re: Finding Q
Brooke Yasuda 2J wrote:Yes, the anode is the product and the cathode is the reactant. This makes sense because in the anode the concentrations of reactant are decreasing as it forms product in the cathode.
So then the anode is always the product and the cathode is always the reactant?
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Re: Finding Q
Juana Abana 1G wrote:So then the anode is always the product and the cathode is always the reactant?
In most cases, yes, but I would always write out the reaction to be sure.
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